At the end of 2014 the Carthage Foundation merged into the Sarah Scaife Foundation.[1]

While the Allegheny Foundation focuses its giving in the western Pennsylvania region, the Sarah Scaife Foundation has a national and international focus.[1] Like the latter, the Carthage Foundation's grants were "primarily directed toward public policy programs that address major domestic and international issues...[with] no geographical restrictions."[2]

After the death of Richard Scaife in 2014, a significant portion of his assets were given to the foundations, increasing their value substantially. Together with the Carthage merger, the bequest made the Sarah Scaife Foundation one of the largest foundations focused on supporting right-wing causes with assets expected to grow to grow to some $800 million in 2015.[3]